Low-Pressure Metallo-Organic Chemical Vapor Deposition of GaxIn1−xAsyP1−y Alloys

Manijeh Razeghi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


This chapter discusses that metallo-organic chemical vapor deposition (MOCVD) has emerged as a valuable tool for the growth of device-quality epitaxial layers of InP, G0.47In0.53 As, and GaxIn1–xAsyP1–y. The GaInAsP/InP alloy system has many advantages and has been given considerable research attention for electro-optical device applications. However, there are still important unsolved problems for the growth of these materials with liquid-phase epitaxy (LPE), vapor-phase epitaxy (VPE), and molecular-beam epitaxy (MBE). One of these is the development of practical LPE techniques for reproducibly growing InP and GaInAsP alloys with a low carrier concentration level. This is especially important for the fabrication of p-i-n and avalanche photodiodes. A further problem with LPE is the growth of InP on longer-wavelength layers, such as GaInAs, without any interface compositional grading layers and anti-melt-back layers. With the VPE technique, it is difficult to obtain misfit dislocation-free InP-GaInAsP-InP heterostructures and very thin layers. A problem for the MBE technique is the growth of phosphorus-bearing alloys.

Original languageEnglish (US)
Pages (from-to)299-378
Number of pages80
JournalSemiconductors and Semimetals
Issue numberPA
StatePublished - Jan 1 1985

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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